<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */
/**
 * determines if a resource is trusted or not
 *
 * @param string $resource_type
 * @param string $resource_name
 * @return boolean
 */
// $resource_type, $resource_name
function smarty_core_is_trusted ($params, &$smarty)
{
    $_smarty_trusted = false;
    if ($params['resource_type'] == 'file') {
        if (! empty($smarty->trusted_dir)) {
            $_rp = realpath($params['resource_name']);
            foreach ((array) $smarty->trusted_dir as $curr_dir) {
                if (! empty($curr_dir) && is_readable($curr_dir)) {
                    $_cd = realpath($curr_dir);
                    if (strncmp($_rp, $_cd, strlen($_cd)) == 0 &&
                     substr($_rp, strlen($_cd), 1) == DIRECTORY_SEPARATOR) {
                        $_smarty_trusted = true;
                        break;
                    }
                }
            }
        }
    } else {
        // resource is not on local file system
        $_smarty_trusted = call_user_func_array(
        $smarty->_plugins['resource'][$params['resource_type']][0][3], 
        array($params['resource_name'], $smarty));
    }
    return $_smarty_trusted;
}
/* vim: set expandtab: */
?>
